Technics Rs-b465 User manual

ORDER

NO.

AD9005125C2

Service

Manual

Dolby

NR-Equipped

Stereo

Cassette

Deck

OC

wots

B-C

NR

HX

PRO]

*

HX

Pro

headroom

extension

originated

by

Bang

Olufsen

and

manufactured

under

license

from

Dolby

Laboratories

Licensing

Corporation.

“DOLBY”,

the

double-D

symbol,

and

‘‘HX

PRO”

are

trademarks

of

Dolby

Laboratories

Licensing

Corporation.

RS-B755

MECHANISM

SERIES

(AR350)

@

SPECIFICATIONS

lM

CASSETTE

DECK

SECTION

Deck

system

Track

system

Stereo

cassette

deck

4-track,

2-channe|

Heads

Rec/Play

Erasure

Motors

Capstan

drive

DC

servo

motor

Reel

table

drive

DC

motor

Recording

sysiem

AC

bias

Bias

frequency

80.

kHz

Erasing

system

AC

erase

Tape

speed

4.8.

cm/sec.

(17/s

ips)

Frequency

response

NORMAL

30

Hz~15

kHz

(+3

dB)

30

Hz~15

kHz

(DIN)

CrO2

30

Hz~16

kHz

(+3

dB)

30

Hz~16

kHz

(DIN)

METAL

30

Hz~17

kHz

(+3

dB)

30

Hz~17

kHz

(DIN)

x

recording

level,

CrOz

type

tape)

74

dB

(CCIR)

66

dB

(CCIR)

56

dB

(A

weighted)

S/N

(signal

jevel=

Dolby

C

NR

on

Dolby

B

NR

on

Dolby

NR

off

Technics

Cassette

Deck

RS-B465

Color

|

(K)...Black

Type

|

Wow

and

flutter

Fast

forward

and

rewind

times

Approx.

90

s

Input

sensitivity

and

impedan

MIC

0.25

mV/6000~10

kQ

LINE

IN

60

mV/47

kO

Output

voltage

and

impedance

LINE

OUT

HEADPHONES

@

GENERAL

Power

consumption

16

W

Power

supply

For

Continental

Europe,

F.R.

Germany

and

italy

AG

50/60

Hz,

220

V

AG

50/60

Hz,

240

V

For

Great

Britain

Dimensions

(WXHxXD)

430

x

125x290mm

(1615/16

415/16”

1119/32

Weight

4.3

kg

(9.5

1b.)

Note:

Specifications

are

subject

to

change

without

notice.

Weight

and

dimensions

are

approximate

Matsushita

Electric

Industrial

Co.,

Ltd.

Central

P.O.

Box

288,

Osaka

530-91,

Japan

RS-B465

Mi

CONTENTS

Page

ACCESSORIES

.......:cscsssssssssscsstensestsensssscsseasecesvarseeceesnnseseenserss

2

CONNECTIONS

.......cececscsssesssestssssssonsnsesesnsseeessstecseneseseserssecs

2

FRONT

PANEL

CONTROLS

AND

FUNCTIONG..............

3,4

DISASSEMBLY

INSTRUCTIONG...........ccscccssscseessseseersees

5~8

MEASUREMENT

AND

ADJUSTMENT

METHODES....

8~10

TERMINAL

FUNCTION

OF

IC...........csccssersceressceosesecesseerss

11

INTERNAL

CONNECTION

OF

EL

.........::csssssessssssssscerseseeees

12

BLOCK

DIAGRAM

............ccsssssccossesssseseosseessesecreerseeseneees

13,14

TERMINAL

GUIDE

OF

IC’S,

TRANSISTORS

AND

DIODES

bocce

nvetsendecctacsiestesccaideassbeasiccpocasbetsacessostcavesdecees

15

li

ACCESSORIES

©

AC

power

supply

cord...

..........0

000

cee

eee

1

(SFDACOS5E03)...

(E,

=

(SJA193-1).........

(EB)

Mi

CONNECTIONS

Make

connections

in

the

numbered

sequence

by

using

the

in-

cluded

cables.

@)

Connect

the

stereo

connection

cables.

@

Connect

the

AC

power

supply

cord.

Receiver

or

amplifier

(not

included)

REC

PLAY

OUT

BACK

Household

AC

outlet

¢

Stereo

connection

cables.....................0005

2

(SJP2249-3)

AC

power

supply

cord

(@)

The

configuration

of

the

AC

outlet

and

AC

power

supply

cord

dif-

fers

according

to

area.

For

United

Kingdoom

Household

AC

outlet

rs

X

7

Fit

a

suitable

plug

to

the

AC

power

supply

cord.

pply

|

Placement

hints

If

this

unit

is

placed

near

a

receiver

or

a

tuner,

a

“hum”

noise

may

be

heard

during

tape

playback,

recording,

or

AM

reception

of

the

receiver

or

the

tuner.

If

this

occurs,

leave

as

much

space

as

possible

between

the

units,

or

place

them

where

there

is

the

least

amount

of

“hum”.

Note:

This

unit

is

a

precision

instrument.

Be

sure

to

place

it

on

a

flat

sur-

face.

RS-B465

Mi

FRONT

PANEL

CONTROLS

AND

FUNCTIONS

Control

section

@

Power

“standby

©

/on”

switch

(power/H

standby

(5

=

on)

This

switch

switches

ON

and

OFF

the

secondary

circuit

power

only.

The

unit

is

in

the

“standby”

condition

when

this

switch

is

set

to

the

standby

(!)

position.

Regardless

of

the

switch

setting,

the

primary

circuit

is

always

“live”

as

long

as

the

power

cord

is

connected

to

an

electrical

outlet.

(2)

Eject

button

(4

eject)

This

button

can

be

used

to

open

the

cassette

holder.

(3)

Cassette

holder

4)

Display

section

timer

counter

memory

r

peak

hold

reset

“

rec

off

-—

play

auto

manual

}

cue

and

review

5]

Recording-level

control

(rec

level)

This

control

can

be

used

to

regulate

the

recording

level.

@

Recording-balance

control

(balance)

This

control

can

be

used

to

balance

the

left

and

right

sound

levels

during

recording.

@

Microphone

jacks

(mic)

©

Bias-adjustment

control

(bias

adjust)

The

frequency

response

for

each

tape

type

can

be

equalised

by

using

this

control.

9)

Operation

section

©

Headphones

jack

(phones)

MPxX

filter;

aes

noise

reduction

——

1

B—DolbyNR—C

RS-B465

Operation

section

®

Timer

switch

(J

timer)

This

switch

is

used

to

automatically

begin

a

tape

recording

or

tape

playback

at

a

certain

time,

selected

by

a

timer

(not

in-

cluded).

@

Counter

reset

button

(counter

reset)

This

button

can

be

used

to

reset

the

tape

counter

indication

to

“000”.

®

Memory-stop

button

(memory

stop)

This

button

can

be

used

to

rewind

the

tape

to

the

preset

“000”

point

when

the

rewind

(<4)

button

is

pressed.

@)

Peak

hold

reset

button

(peak

hold

reset

auto/manual)

auto:

The

peak

level

of

the

source

is

held

and

displayed

for

approximately

one

second

at

a

time.

manual:

The

peak

level

of

the

source

is

held

and

displayed

continuously.

To

reset

the

peak

hold

function,

press

this

button

once

again.

®

Multiplex

filter

switch

(MPX

filter)

This

prevents

the

Dolby

circuit

from

operating

in

error

when

FM

stereo

broadcasts

are

recorded

using

the

noise

reduction

function.

®

Dolby

noise-reduction

buttons

(noise

reduction)

These

buttons

can

be

used

to

reduce

the

hiss

noise

that

is

characteristic

of

tape.

This

unit

is

provided

with

both

the

Dolby

B

NR-type

and

C

NR-type

noise-reduction

systems.

@®

Record

button

(rec/®@)

This

button

can

be

used

to

change

the

tape

deck

to

the

recording

stand-by

mode.

@®

Automatic-record-muting

button

(auto

rec

mute/Q)

This

button

can

be

used

to

make

a

silent

interval

on

the

tape

being

recorded

on

tape

deck.

@®

Pause

button

(pause/#1)

This

button

can

be

used

to

temporarily

stop

the

tape

playback

or

recording

of

tape

deck.

@

Fast-forward/cue,

rewind/review

buttons

(cue/review/>

>./<<)

These

buttons

can

be

used

to

advence

or

rewind

the

tape.

During

playback

these

buttons

are

used

to

cue

or

review

while

listening

to

the

contents

at

high

speed.

@

Playback

button

(play/P)

This

button

can

be

used

to

start

the

playback

or

recording

of

the

cassette.

(The

tape

will

then

begin

moving

in

the

left-to-right

direction.)

@

Stop

button

(stop/H)

This

button

can

be

used

to

stop

tape

movement.

SUEDE

GEGGD

BURGE

GOURD

ROGUE

UGGS CREE

RBESD ROGGE

POON

-20

-15

—10

—6

-3

0

+1

og

+5

+8

CURES

GRGEE

REGEE

CORTE

RUNEE

CRUUE

GERRS

BRAG

BOSON

SUES

=

+

'

’

a

Display

section

@)

Recording

indicator

([%)

This

indicator

illuminates

to

indicate

that

this

tape

deck

is in

the

recording

stand-by

mode,

or

is

recording.

@)

Playback

indicator

(play)

When

this

indicator

illuminates

steadily,

it

indicates

that

this

tape

deck

is

in

the

playback

mode

or

the

recording

mode.

When

it

flashes

continually,

this

is

an

indication

that

this

tape

deck

is

in

the

pause

mode

or

the

recording

stand-by

mode.

®

Input

level

meter

During

playback,

this

meter

indicates

the

level

of

the

recorded

sound.

During

recording,

it

indicates

the

level

being

recorded,

ad-

justed

by

the

recording-level

control.

@

Dolby

noise-reduction

indicators

({B],

[C])

Each

indicator

illuminates

to

show

the

type

of

Dolby

noise-

reduction

system

selected

by

pressing

one

of

the

Dolby

noise-

reduction

buttions.

@

Multipiex

filter

indicator

(MPX)

Iiluminates

to

indicate

that

the

multiplex

filter

is

set

to

“on”.

@

Memory-stop

indicator

(M.stop)

This

indicator

illuminates

to

indicate

that

this

tape

deck

is in

the

memory

stop

mode.

€@

Tape-select

indicators

The

type

of

tape

being

used

will

be

automatically

detected

and

the

indicator

will

iltuminate.

€)

Tape

counter

Indicates

the

amount

of

tape

movement.

RS-B465

=~)

Mi

DISASSEMBLY

INSTRUCTIONS

“ATTENTION

SERVICER”

Some

chassis

components

may

have

sharp

edges.

Be

careful

when

disassembling

and

servicing.

Removal

of

the

cabinet

ee

Removal

of

the

main

P.C.B.

3)

Procedure

|

1

Remove

the

7

screws

(@~@).

ee

1>2

2.

Remove

the

rear

panel

from

the

projec-

tion

of

the

bottom

chassis.

Cabinet

Rear

Panel

Ce

Projection

w

0

Ce

Bottom

Chassis

0

Projection

Remove

the

6

screws

(9~@).

3.

Remove

the

6

screws

(O~®).

4.

Remove

the

1

connector

(CP1).

5.

Remove

the

4

flat

cables

(CN2,

CN3,

CN4,

CN7).

6.

Remove

the

main

P.C.B.

in

the

direction

of

the

arrow.

How

to

remove

the

flat

cable

¢

Pull

out

the

flat

cable

while

1.

Lift

the

connector.

pressing

the

connector.

2.

Pull

out

the

flat

cable.

My.

Flat

Cable

a

Connector

Flat

/

Cable

ag

Connector

’

Main

PC.B.

»

@O

|

How

to

check

the

main

P.C.B.

When

checking

the

soldered

surfaces

of

main

P.C.B.

4.

Remove

the

bottom

board

in

the

direction

of

the

ar-

and

replacing

the

parts,

do

as

show.

row

©.

1.

Remove

the

9

screws

(@,

©,

@~®)

in

above

figure.

5.

Reinstall

the

front

panel

to

the

main

P.C.B.

2.

Remove

the

5

screws

(O~®).

3.

Remove

the

front

panel

in

the

direction

of

the

arrow

RS-B465

Procedure

2.

Remove

the

1

connector

(CP1).

3.

Remove

the

3

flat

cables

(CN3,

CN4,

CN7).

y

Front

Panel

4.

Remove

the

front

panel

in

the

direction

of

the

arrow.

|

Procedure

1-3-4

Knobs

1.

Pull

out

the

3

knobs.

2.

Remove

the

1

nut.

.

Remove

the

6

screws

(@~@).

.

Release

the

2

claws.

Remove

the

FL

drive

P.C.B.

in

the

direction

of

the

arrow.

OR

w

Removal

of

the

rec

level

P.C.B.

and

mic

jack

P.C.B.

Ref.

No.

6

Removal

of

the

operation

P.C.B.

Procedure

1-345

Mic

Jack

PC.B.

i

Removal

of

the

rec

level

P.C.B.

*

Remove

the

rec

level

P.C.B.

in

the

direction

of

the

arrow.

i

Removal

of

the

mic

jack

P.C.B.

¢

Remove

the

mic

jack

P.C.B.

in

the

direction

of

the

arrow.

Procedure

1--3-—--4—6

1.

Remove

the

4

screws

(@~®).

2.

Release

the

4

claws.

RS-B465

Removal

of

the

mechanism

unit

Mechanism

Unit

Procedure

1-3-7

Eject

Button

1.

Push

the

eject

button.

2.

Remove

the

4

screws

(O~®).

Ref.

No.

Removal

of

the

damper

gear

Removal

of

the

cassette

holder

Procedure

I

8

Procedure

1-3

7-8

1-3—-7-8

e

Remove

the

1

screw

(@).

Removal

of

the

power

switch/

headphones

P.C.B.

1.

Remove

the

rib

in

the

direction

of

the

arrow.

2.

Remove

the

cassette

holder

spring.

Procedure

1>3—-10

Power

Switch

/Headphones

PC.B.

Power

Switch

Button

Holder

Cassette

Holder

1.

Remove

the

power

switch

button

by

pushing

it

from

behind

the

front

panel.

Remove

the

2

screws

(@, @).

Release

the

1

claw.

Remove

the

holder.

3.

Pull

out

the

cassette

holder

in

the

direction

of

the

arrow.

PON

RS-B465

11

Procedure

1—3-10

11

Removal

of

the

eject

lever

and

eject

button

Eject

Lever

:

Eject

Lever

1.

Push

the

claw

in

the

direction

of

the

arrow

®.

3.

Puil

out

the

eject

button.

2.

Remove

the

eject

lever

in

the

direction

of

the

arrow

©.

Removal

of

the

power

supply

P.C.B.

Procedure

1-12

1.

Remove

the

1

flat

cable

(CN2).

2.

Remove

the

4

screws

(@~®).

li’

MEASUREMENT

AND

ADJUSTMENT

METHODES

Measurement

Condition

@

Rec.

level

control;

Maximum

@

Balance

control;

Center

@

Timer

stand-by

switch;

Off

@

Make

sure

heads

are

clean

@

Noise

reduction

select

switch;

Off

@

Make

sure

capstan

and

pressure

roller

are

clean

@

MPX

filter

switch;

Off

@

Judgeable

room

temperature

20+5°C(68219°F)

Measuring

instrument

@

EVM(Electronic

Voltmeter)

@

ATT(Attenuator)

@

Oscilloscope

@

DC

volimeter

@

Digital

frequency

counter

@

Resistor

(6000)

@

AF

oscillator

Test

tape

@

Head

azimuth

adjustment

(8kHz,

-20dB);

QZZCFM

@

Playback

gain

adjustment

(315Hz,

0dB);

QZZCFM

@

Tape

speed

adjustment

(3kHz,

-10dB);

QZZCWAT

@

Overall

frequency

response,

Overall

gain

adjustment

@

Playback

frequency

response

(315Hz,

12.5kHz,

10kHz,

Normal

reference

blank

tape;QZZCRA

8kHz,

4kHz,

1kHz,

250Hz,

125Hz,

63Hz,

-20dB);

CrQz

reference

blank

tape;

QZZCRX

QZZCFM

Metal

reference

blank

tape;

QZZCRZ

HEAD

AZIMUTH

ADJUSTMENT

.Playback

the

azimuth

adjusment

portion

(8

kHz,

-20

dB)

of

the

test

tape

(QZZCFM).

Vary

the

azimuth

adjusting

screw

until

the

outputs

of

the

L-CH

and

R-CH

are

maxi-

mized

and

the

lissajous

waveform,

as

illustrated,

ap-

proaches

0

degrees.

Note:

If

L-CH

and

R-CH

are

not

maximized

at

the

same

point,

adjust

to

the

point

where

the

levels

of

each

channel

are

maximized

and

equal.

2.Perform

the

same

adjustment

in

the

play

mode.

3.

After

the

adjustment,

apply

screwlock

to

the

azimuth

adjusting

screw.

TAPE

SPEED

ADJUSTMENT

1.Playback

the

middle

portion

of

the

test

tape

(QZZCWAT).

2.

Adjust

the

VR901

so

that

the

output

is

within

the

standard

value.

Stardard

value:

3000

+

15Hz

PLAYBACK

GAIN

ADJUSTMENT

1.Playback

the

gain

adjusted

portion

(315

Hz,

0 dB)

of

the

test

tape

(QZZCFM).

2.

Adjust

VR1

(L-CH)

and

VR2

(R-CH)

so

that

the

output

is

within

the

standard

value.

Standard

value:

0.4V+0.5dB

PLAYBACK

FREQUENCY

RESPONSE

1.Playback

the

frequency

response

portion

(315

Hz,

12.5

kHz

~

63

Hz,

-20

dB)

of

the

test

tape

(QZZCFM).

2.Assure

that

the

frequency

response

is

within

the

range

shown

in

Fig.

6

for

both

L-CH

and

R-CH.

LINE

OUT

OVERALL

GAIN

ADJUSTMENT

1.Insert

the

Normal

blank

test

tape

(QZZCRA)

and

set

the

unit

to

the

Record

pause

mode.

2.Apply

a

reference

input

signal

(1

kHz,

-24

dB).

Attenuate

the

output

so

that

its

level

becomes

OV.

3.Record

this

input

signal.

4.Playback

the

signal

recorded

in

step

3

above

,

and

assure

that

the

output

is

within

the

standard

value.

5.

Hf

it

is

not

within

the

standard

value,

adjust

VR3

(L-CH)

and

VR4

(R-CH).

6.Repeat

the

step

2

~

5

above

until

the

output

is

within

the

standard

value.

Standard

value:

0.4V

+

0.5dB

RS-B465

Record/

Playback

Head

Azimuth

Screw

Fig.2

LINE

OUT

Digital

frequency

counter

LINE

OUT

63Hz

100Hz

200Hz

|SO0OHZ

1kHz 2kHz

4kHz

Fig.6

LINE

IN

LINE

OUT

AF

oscillator

ATT

EVM

Oscilloscope

RS-B465

OVERALL

FREQUENCY

RESPONSE

1.Insert

the

a

Normal

blank

test

tape

(QZZCRA)

and

set

the

unit

to

the

Record

Pause

mode.

2.Apply

a

reference

input

signal

(1

kHz,

-24

dB)

through

an

attenuator.

3.Attenuate

the

signal

by

20

dB

and

adjust

the

frequency

from

50

Hz

~

10.0kHz.

4.Record

the

frequency

sweep.

5.Playback

the

recorded

signal

and

assure

that

it

is

within

the

range

shown

in

Fig.8

in

comparison

to

the

reference

frequency

(1

kHz).

6.If

it

is

not

within

the

standard

range,

adjust

VR301

(L-CH)

and

VR302

(R-CH)

so

that

the

frequency

level

is

within

the

standard

range.

7.Repeat

steps

2

~

6

above

using

the

CrOz

tape(QZZCRX)

and

the

Metal

tape(QZZCRZ)

increasing

the

frequency

range

to

12.5kHz

(60Hz2~12.5kHz).

8.Assure

that

the

level

is

within

the

range

shown

in

Fig.9.

LINE

IN

LINE

OUT

AF

oscillator

ATT

EVM

Oscilloscope

¢

Adjustment

points

MAIN

PC.B.

TAPE

SPEED

ADJ.

VR9OI

(XI)

VR302

VR30l

Normal

Overall

frequency

response

chart

(NR

OUT)

5OHz

100Hz

200Hz

SOOHZ

1kHz

2kHz

Fig.8

CrO,-Metal

Overall

frequency

response

chart

(NR

OUT)

5OKz

100Hz

200Hz

SO0H2

1kHz

2kHz

12.5kHz2

Fig.9

Line

Out

in

LJ]

=

PLAYBACK

GAIN

ADJ.

VRi

(Leh,

VR2(Rch)

=

OVERALL

GAIN

ADJ.

VR3(Lch),

VR4(Rch)

OVERALL

FREQUENCY

RESPONSE

ADJ.

VR3Ol(Lch),

VR302(Rch)

TERMINAL

FUNCTION

OF

IC

e

1C901

(M50940-263SP):

Microcomputer

Reference

Voltage

terminal

Mechanism

select

signal

(Not

used,

connected

to

GND)

Remote

control

select

(Not

used,

connected

to

GND)

Lch

level

display

Rch

level

display

Tie)

Division

iFTe)

Division

Bei

AC

POWER

off

detect

signai

Rec

enable

signal

(“L”:

rec,

“H”:

other)

|

—

|

GND

terminal

Reset

signal

(“L”:

reset)

OF

<

a

@

REF

1WAY/

REV

18.8

Dl);

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m||

>

ae)

on

mi

|<

al]

8

iw)

nN

N

>

8

CH

Clock

OSC

terminal

(4MHz)

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i?)

<=

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used,

connected

to

GND)

Not

used,

open)

=~

6

KEY

2

KEY

1

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«|

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OUT

<

7)

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SW

input

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tape

det.

signal

LTD

System

clock

signal

(Not

used,

open)

a

wo

:

Zz

x

Reverse

rec

inhibit

Rotation

pulse

det.

signal

Line

out

mute

signal

(“H”:

ON,

“L”:

OFF)

REC

AMP

mute

signal

(“H”:

ON

“L”:

OFF)

BIAS

OSC

ON/OFF

control

(“H”:

ON

“L”:

OFF)

Rec

mode

signal

(“H”:

Rec

“L”:

other)

Dolby

NR

mode

select

signal

(“L”:

Dolby

C,

“H”:

other)

Forward

rec

inhibit

Mechanism

mode

SW

terminal

Cassette

half

det.

SW

teriminal

BY

=

4

Reference

voltage

terimal

(Negative

voltage)

<

no]

=)

=

4

10)

Brake

solenoid

hold

control

signal

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at

On

a/W)/O

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Brake

solenoid

trigger

control

signal

PLP

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|

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=

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x=

>

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solenoid

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signal

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motor

control

Cc

=

in

x

ra

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[stop

[Puay-FF|

REW

|

5

Dolby

NR

mode

select

signal

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|

ok

|

ok

|

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(“L”:

Dolby

B,

“tH”:

other)

RMF

L

H

L

MPX

ON/OFF

control

signal

(“L”:

ON,

“H”:

OFF)

Capstan

motor

control

(“H":

ON,

“L”:

OFF)

16

44

Oo

ara

$

xD

0

=

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mode

control

is

(“H”:

cue/rev,

“L”:

other)

Q

By

fe)

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segment

control

signal

Ppa

fafalel

a.

Remote

control

signal

19

ARM

mute

rec

mute

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signal

56

1G

(“L”:

key

on,

“H”

key

off)

§

FL

grid

control

signal

62

7G

NC

Synchro

start

signal

(“L”:

start,

“H”:

stop)

Auto

tape

selector

signal

Nor

CrO,

Metal

ATSC

L

H H

ATSM

L L

H

AV

=

Power

supply

terminal

ve

(Positive

voltage)

Vv

+

Power

supply

terminal

oe

(Positive

voltage)

Timer

normal

or

abnormal

select

signal

(Normal:

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Abnormal:

“L”)

=

oO

4

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BS

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fép)

4

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connection

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20

7

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SCHEMATIC

DIAGRAM

(Parts

list

on

pages

27, 28,

35,

36.)

(This

schematic

diagram

may

be

modified

at

any

time

with

development

of

new

technology.)

Notes:

e

$701

:

Stop

switch

(stop)

in

“off”

position.

«$702

:

Fast-forward/cue

switch

(ff)

in

“off”

position.

©

$703

:

Rewind/review

switch

(rew)

in

“off”

position.

¢

$704

:

Playback

switch

(play)

in

“off”

position.

°

$706

:

Record

switch

(rec)

in

“off”

position.

e

$707

:

Pause

switch

(pause)

in

“off”

position.

¢

$708,

709

:

Dolby

noise-reduction

switches

in

“off”

position.

Petes

Dolby

NR

.

|

$709:

Dolby

NR

B

¢

$710

:

Multiplex

filter

switch

(MPX

filter)

in

“off”

position.

°

$711

:

Timer

switch

(timer)

in

“off”

position.

©

$712

:

Automatic-record-muting

switch

(auto

rec

mute)

in

“off”

position.

©

$713

:

Counter

reset

switch

(counter

reset)

in

“off”

position.

©$714

:Memory-stop

switch

(memory

stop)

in

“off”

position.

¢

$715,

716

:

Peak

hold

reset

switches.

has

auto

]

$716:

manual

¢$717

:

Power

switch

(power)

in

“on”

position.

°

$971

:

Mode

switch

in

“off”

position.

¢

$972

:

Cassette

half

detection

switch

in

“off”

position.

©

$973

:

ATS

(CrO.)

switch

in

“off”

position.

e

$975

:

Rec

inhibit

switch

in

“off”

position.

°

S976

:

ATS

(Metal)

switch

in

“off”

position.

¢

Resistance

are

in

ohms

(Q),

1/4

watt

unless

specified

otherwise.

1K=1,000

(Q),

1M=1,000k

(Q)

¢

Capacity

are

in

micro-farads

(uF)

unless

specified

otherwise.

¢

All

voltage

values

shown

in

circuitry

are

under

no

signa!

condition

and

playback

mode

with

volume

control

at

minimum

position

otherwise

specified.

(

|

ener

Voltage

values

at

record

mode.

For

measurement

us

EVM.

¢

(important

safety

notice

Components

identified

by

A

mark

have

special

characteristics

important

for

safety.

When

replacing

any

of

these

components,

use

only

manufacturer's

specified

parts.

¢(

m—mmee=

)

indicates

+B

(bias).

¢(

mam

m

)

indicates

—B

(bias).

o(

)

indicates

the

flow

of

the

playback

signal.

¢(

<>

)

indicates

the

flow

of

the

record

signal.

*

Caution!

IC

and

LSI

are

sensitive

to

static

electricity.

Secondary

trouble

can

be

prevented

by

taking

care

during

repair.

*

Cover

the

parts

boxes

made

of

plastics

with

aluminum

foil.

*

Ground

the

soldering

iron.

*

Put

a

conductive

mat

on

the

work

table.

*

Do

not

touch

the

legs

of

IC

or

LSI

with

the

fingers

directly.

RS-B465

Mi

WIRING

CONNECTION

DIAGRAM

AC

IN

ERASE

HEAD

R/P

HEAD

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(

Power

transformer

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RS-B465

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11

12

13

14

15 16

17

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STOP

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REC

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TIMER

RS-B465

Mi

REPLACEMENT

PARTS

LIST

Notes

:

*

Important

safety

notice:

Components

identified

by

A\

mark

have

special

characteristics

important

for

safety.

When

replacing

any

of

these

components

use

only

manufacturer’s

specified

parts.

*

The

parenthesized

indications

in

the

Remarks

columns

specify

the

areas.

(Refer

to

the

cover

page

for

area.)

SLOSB4-K

COIL

RJUOS7W007

SOCKET

(7P)

Parts

without

these

indications

can

be

used

for

all

areas.

SLO9B1-K

COIL

RJSIA1101

SOCKET

(1P)

QLM9Z10K

COIL

RJSIA1101

SOCKET

(1P)

RJSIA1101

SOCKET

(1P

Part

Name

&

Description

Remarks

oa

TRANSFORMER

(S)

SJTD513

CONNECTOR

(5P)

TRANSISTOR

RJTOO3KO10M1

|CONNECTOR{10P)

aan

TRANSISTOR

RTP1K4E008-V

|POWER

TRANSFORMER

(E,

EG)

AV

RJTOO3KO10M1

|CONNECTOR(10P)

TRANSISTOR

RTP1K4B007-V

|POWER

TRANSFORMER

(EB)

A\

RJTO57¥007

©

|CONNECTOR<7P)

TRANSISTOR

Part

Name

&

Description

.

No.

Part

Name

&

Description

DTC144ESTP

DTALL4ESTP

2SBLO30RSTIA

DTAL44ESTP

DIC114ESTP

28D2037EF

TA

INTEGRATED

CIRCUIT

(S)

{aN7351K

|

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AMP

UPC1297¢A

DOLBY

HX

PRO

CXAI3318

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NR

fe

LEVEL

METER

AMP

+

OSCILLATOR(S)

“TGND

PART(S)

EFOGC4004T4

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FILTER

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SNE1004~-1

GND

PLATE

‘{suso1

65

GND

SPRING

DISPLAY

TUBE

RMC0089

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SPRING

DIODE

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M5218L

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cit

MICROCOMPUTER,

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MAI67TA

DIODE

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MALG5TA

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MAL65TA

DIODE

MAL65TA

DIODE

1SR35200TB

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DIODE

BAG218

REEL

MOTOR

CONTROL

GP2S06BC

PHOTO

COUPLER

RSLO054-F

DISPLAY

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JACK

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SWITCH

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MIC(L),

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|

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NR

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EVQ21405R

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NR

B

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SSS166

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REC

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HOLD

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[evoe40sR

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RESET

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‘ATS

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[REC

INHIBIT

RSHIAGOZ

‘ATS

|

TRANSISTOR

(S)

2SJ164PQRTA

|)

TRANSISTOR

2SC3311AQSTA

|TRANSISTOR

2SK381BCDTA

|

TRANSISTOR

2SJLG4PQRTA

|

TRANSISTOR

2SD1450RSTA

|

TRANSISTOR

2SC3311AQSTA

|TRANSISTOR

2SD592AQRSTA

TRANSISTOR

2SB62IARSTA

|

TRANSISTOR

2SA1309AQSTA

[TRANSISTOR

2SC3311AQSTA

|TRANSISTOR

2SA1309AQSTA

|TRANSISTOR

2SC3S11AQSTA

/TRANSISTOR

2SD2007EFTA

|

TRANSISTOR

2SB1357EFTA

|

TRANSISTOR

2SD20V7EFTA

FTRANSISTOR

2SBB2IARSTA

|

TRANSISTOR

2SC3311AQSTA

TRANSISTOR

2SA1309AQSTA

|TRANSISTOR

DICLAESTP

[TRANSISTOR

2SBLO30RSTTA

|

TRANSISTOR

2SC3311AQSTA

|TRANSISTOR

[pTC1

14ESTP

[Gaels

2SBLO30RSTIA

|

TRANSISTOR

‘[ptciiestP

[TRANSISTOR

2SB1030RSTTA

|

TRANSISTOR

DICL14ESTP

|

TRANSISTOR

2SBG2IARSTA

|

TRANSISTOR

TDTCLUMESTP

[TRANSISTOR

2SD5

$2AQRSTA

[TRANSISTOR

asc3aragsTA

|

TRANSISTOR

2SC3311AQSTA

|

TRANSISTOR

DTAL4/ESTP

|

TRANSISTOR

MAAOSIMTA

MAAOB2HTA

MA4240MTA

MAA330MTA

MAAO51MTA

MALG5TA

MAL65TA

MAAO56HTA

InaootnTa

1SR35200T8

|

DIODE

MAL65TA

‘(DIODE

testa

[Drone

MA4I20MTA

[DIODE

‘TWALESTA

DIODE

188133

[pioDE

DIODE

[DIODE

DIODE

IVARIABLE

RESISTOR

(S)

PLAYBACK

GAIN

ADJ.

EVNDXAAOOB14

{OVERALL

GAIN

ADJ.

ENGEPAD24A54

[REC. LEVEL

CONTROL

|evs02sFOsG15

[BALANCE

CONTROL

EVNDXAAOOBI4

[OVERALL

FREQUENCY

ADJ.

EVJO2VFO4B53

[BIAS

CONTROL

ADJ.

|EVNDXAADOBS3

aoe

SPEED

ADJ.

|

EVNDXAAO0B53

CONNECTOR

(S)

AND

SOCKET

(S)

RJS1A1

703

CONNECTOR

(3P)

‘TRISIAL703

CONNECTOR

(3P)

SJSD1005

CONNECTOR

(10P)

RJS1A1703

CONNECTOR

(3P)

RJSIAL703

CONNECTOR

(3P)

RJUOO3KOLOM1

|SOCKET

(10P)

_{RISIAL703

CONNECTOR

(3P)

RJS1A1704

CONNECTOR

(4P)

RJUOO3KO10M1

{SOCKET

(10P)

COIL

(S)

SLQX303-1KT

SLQX272-1YT

COIL

Technics RS-B465 User manual

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